Very small size K_a-band two-bit and K-band six-bit capacitive DMTL phase shifters are designed, calculated and simulated using a new approach. It is done based on information in the return loss diagram. The equations related to the resonance frequencies in the return loss diagram are extracted from the input impedance poles. It is due to the same resonance frequencies of return loss and input impedance diagrams in the linear region. Around these resonance frequencies, it is possible to have a high phase shift and small size together with acceptable return loss. The total proposed two and six-bit phase shifters length are 1.8 mm and 5 mm, respectively. These lengths are the smallest size among the two and six-bit capacitive DMTL phase shifters till now. Moreover, cantilever beam switches with low actuation voltage are used in two-bit phase shifter due to their compatibility with the integrated circuits. The equations-based calculated results are again calculated and simulated in MATLAB and HFSS softwares, respectively.

非常小的尺寸 K _a使用一种新方法设计、计算和仿真了 2 位和 K 波段 6 位电容性 DMTL 移相器。它是根据回波损耗图中的信息完成的。回波损耗图中与谐振频率相关的方程是从输入阻抗极点提取的。这是由于线性区域中的回波损耗和输入阻抗图的谐振频率相同。在这些谐振频率附近，可以具有高相移和小尺寸以及可接受的回波损耗。提出的二位和六位移相器总长度分别为 1.8 mm 和 5 mm。这些长度是迄今为止两位和六位电容 DMTL 移相器中最小的尺寸。而且，由于与集成电路的兼容性，具有低驱动电压的悬臂梁开关被用于两位移相器。基于方程的计算结果再次分别在 MATLAB 和 HFSS 软件中计算和仿真。